Big Brother: The Final8pm, Channel 4

This is the final of the "last ever Big Brother" but not the final episode, as tonight heralds the beginning of a fortnight's Ultimate Big Brother. The series winner will stay put and be joined by ex-housemates from series past. After 24 hours of basking in their renewed infamy, the old housemates at first won't notice the crew starting to dismantle the set quietly around them, removing their mics and carrying off the fridge until they're left standing in a Borehamwood car park, the last monitor blinking noiselessly off in the deserted gallery.

Baby Beauty Kings8.30pm, BBC3

The programme hitherto known as Baby Beauty Queens – a depressing study of pre-adolescent modelling – changes genders. Tonight we meet Matthew, an eight-year-old who wants to be a model. There's nothing wrong with this, in and of itself. Ambition is good and, as Matthew's parents note, they've supported his brothers' interests in football and music, so they should do what they can for Matthew as well. There is, however, plenty wrong with a society that encourages children to objectify themselves so completely.

The Deep9pm, BBC1

Four episodes in and the starry Deep remains largely a shallow pleasure, but a pleasure nonetheless if you can suspend your disbelief. Tonight, unpredictable Russian Zubov seems to be on board with the idea of returning to the surface, but then abruptly changes his mind, which leads to conflict with the crew of the newly mended Orpheus. Meanwhile, Clem's other half, the hitherto lost Catherine, drops a bombshell: lava bugs could be a source of renewable energy. Time to dive deeper beneath the Arctic ice? JW

Treasures of the Anglo-Saxons9pm, BBC2

Dr Janina Ramirez, goth and art historian, talks us through some of Britain's most glorious Anglo-Saxon booty. Or rather her spike-heel ankle boots do. The editing is extraordinary: bit of fact, close-up of beautiful brooch/shoulder clasp, long tracking shot of Dr Ramirez's pointy boots clip-clopping across a stone chancel floor. Repeat for an hour. She's engaging and enthusiastic but the boots get more screen time than anything dug up at Sutton Hoo. Nevertheless, a visually rich rifle through a big box of shiny things is never going to be dull. Previously shown on BBC4. JNR

Jedward Let Loose9pm, ITV2

New reality series featuring Irish twin brothers John and Edward in which the larksome duo move into their own flat. About as satisfying as watching two confused bees at the end of summer repeatedly flying into a window, then each other, then the window again. They flood the flat; they can't cook; a superb message to send out to our already confused children about the rewards available to those with not an ounce of talent, industry or intellect in their silly heads. Don't work hard, don't strive to excel at anything, because – if you're dumb, pliable and in the right place at the right time – the Earth is already yours.

True Stories: The September Issue10pm, More4

Vogue magazine's September edition is an event not only in fashion (the mag points the way forward for the new season) but also in publishing where it sells a great many copies. Behind the scenes, though, it's all about the mythos that has sprung up around the editor, Anna Wintour, to whose waspish legend the film The Devil Wear Prada has greatly contributed. RJ Cutler's film tells a story that's slightly more complex, discovering Wintour's vulnerabilities, and the genius of her style director, Grace Coddington.